/*
 * Copyright (c) "Neo4j"
 * Neo4j Sweden AB [https://neo4j.com]
 *
 * This file is part of Neo4j.
 *
 * Neo4j is free software: you can redistribute it and/or modify
 * it under the terms of the GNU General Public License as published by
 * the Free Software Foundation, either version 3 of the License, or
 * (at your option) any later version.
 *
 * This program is distributed in the hope that it will be useful,
 * but WITHOUT ANY WARRANTY; without even the implied warranty of
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
 * GNU General Public License for more details.
 *
 * You should have received a copy of the GNU General Public License
 * along with this program.  If not, see <https://www.gnu.org/licenses/>.
 */
package org.neo4j.server.http.cypher.format.output.json;

import static java.util.Arrays.asList;
import static org.assertj.core.api.Assertions.assertThat;
import static org.neo4j.internal.helpers.collection.MapUtil.map;
import static org.neo4j.server.rest.domain.JsonHelper.jsonNode;

import com.fasterxml.jackson.core.JsonGenerator;
import com.fasterxml.jackson.databind.JsonNode;
import java.io.ByteArrayOutputStream;
import java.io.IOException;
import java.util.Collections;
import java.util.Map;
import org.junit.jupiter.api.Test;
import org.neo4j.server.http.cypher.format.api.RecordEvent;
import org.neo4j.server.http.cypher.format.common.Neo4jJsonCodec;
import org.neo4j.server.rest.domain.JsonParseException;

class RowWriterTest {
    @Test
    void shouldWriteNestedMaps() throws Exception {
        ByteArrayOutputStream out = new ByteArrayOutputStream();
        JsonGenerator json = new Neo4jJsonCodec().createGenerator(out);

        JsonNode row = serialize(out, json, new RowWriter());

        assertThat(row.size()).isEqualTo(1);
        JsonNode firstCell = row.get(0);
        assertThat(firstCell.get("one").get("two").size()).isEqualTo(2);
        assertThat(firstCell.get("one").get("two").get(0).asBoolean()).isEqualTo(true);
        assertThat(firstCell.get("one").get("two").get(1).get("three").asInt()).isEqualTo(42);
    }

    private static JsonNode serialize(
            ByteArrayOutputStream out, JsonGenerator json, ResultDataContentWriter resultDataContentWriter)
            throws IOException, JsonParseException {
        Map<String, Object> data = map("the column", map("one", map("two", asList(true, map("three", 42)))));
        RecordEvent recordEvent = new RecordEvent(Collections.singletonList("the column"), data::get);

        json.writeStartObject();
        // RETURN {one:{two:[true, {three: 42}]}}
        resultDataContentWriter.write(json, recordEvent);
        json.writeEndObject();
        json.flush();
        json.close();

        String jsonAsString = out.toString();
        return jsonNode(jsonAsString).get("row");
    }
}
